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Finding the Fourth Proportional to 922,273.75, 1,272,737.78 and 498,337.75

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Solution

The fourth proportional to 922,273.75, 1,272,737.78 and 498,337.75 is: 687,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,273.75 : 1,272,737.78 = 498,337.75 : x
  2. Step 2: Convert to fraction form
    922,273.75/1,272,737.78 = 498,337.75/x
  3. Step 3: Cross multiply
    922,273.75x = 1,272,737.78 × 498,337.75
  4. Step 4: Simplify right side
    922,273.75x = 634,253,281,625.20
  5. Step 5: Solve for x
    x = 634,253,281,625.20/922,273.75
  6. Step 6: Final answer
    x = 687,706.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.